EP0187932A1 - Sécurité de bouche pour munition d'exercice - Google Patents

Sécurité de bouche pour munition d'exercice Download PDF

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Publication number
EP0187932A1
EP0187932A1 EP85115175A EP85115175A EP0187932A1 EP 0187932 A1 EP0187932 A1 EP 0187932A1 EP 85115175 A EP85115175 A EP 85115175A EP 85115175 A EP85115175 A EP 85115175A EP 0187932 A1 EP0187932 A1 EP 0187932A1
Authority
EP
European Patent Office
Prior art keywords
projectile
charge
locking pin
gas generator
front pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85115175A
Other languages
German (de)
English (en)
Inventor
Horst Dr. Penner
Ernst Jensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huels Troisdorf AG
Original Assignee
Huels Troisdorf AG
Dynamit Nobel AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huels Troisdorf AG, Dynamit Nobel AG filed Critical Huels Troisdorf AG
Publication of EP0187932A1 publication Critical patent/EP0187932A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles
    • F42B8/20—Mortar grenades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/28—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
    • F42C15/31—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids generated by the combustion of a pyrotechnic or explosive charge within the fuze

Definitions

  • the invention relates to a front pipe protection for practice ammunition, which is shot down by the central barrel of a full-caliber dummy dummy.
  • sub-caliber practice ammunition for mortars is known. This ammunition is shot down by a barrel, which is installed centrally in a full-caliber mortar shell dummy.
  • the practice floor contains an active charge, often a smoke-generating signal charge, which is ignited by an igniter when it hits the target medium, which in turn is ignited by a system of igniter charge and firing pin on impact.
  • DE-OS 30 33 061 In order to avoid false triggering of the active charge during transport and during the handling of the ammunition, it is proposed in DE-OS 30 33 061 to secure the lighter with a safety pin.
  • the locking pin is inserted perpendicular to the projectile axis, and engages with its inside end in an ent speaking recess in the lighter so that it cannot be moved towards the firing pin opposite it.
  • the outer end of the locking pin is flush with the outer surface of the floor, which lies against the wall of the barrel.
  • a spring is attached to the locking pin so that it is pressed radially outwards. As soon as the projectile leaves the barrel in the dummy mortar projectile, the safety pin no longer lies against the inner wall of the barrel and is therefore ejected.
  • the lighter is freely movable, so that the ignition system is in focus.
  • the active charge is triggered immediately. If this happens in the area near the muzzle, the shooter is at risk because the projectile is in focus immediately after leaving the barrel.
  • This task is performed in the case of a front pipe safety device for practice ammunition, which is fired through the central barrel of a full-caliber dummy projectile, with a lighter that ignites a charge when the practice ammunition strikes the target, with a safety pin that can be ejected perpendicular to the projectile axis and at least that way for the lighter long fixed how the practice ammunition is in the barrel, solved by the fact that the locking pin can be ejected by gas pressure into one Cavity is used, which is connected to a pyrotechnic gas generator, and that the gas generator is connected to a retarding ignition system that is initiated when the practice ammunition is fired.
  • This arrangement ensures that the active charge is brought into focus at a precisely definable point in time after the projectile has left the barrel. This is achieved simply by adjusting the time delay of the ignition system that operates with a delay. In addition, assembling the practice ammunition is easier and safer than was previously the case.
  • the ignition system preferably comprises a pyrotechnic delay charge. In this way, a precisely definable delay time is predefined in a simple manner.
  • the delay charge is preferably preceded by a transmission set which is ignited by an ignition charge initiated by the launch acceleration by means of a firing pin.
  • the ignition charge is arranged to be movable in the direction of the firing pin against the force of a spring. On its side opposite the firing pin, it is connected to a transmission channel that leads to the transmission set.
  • a particularly compact construction results when the symmetry axes of the securing pin, the gas generator and the ignition system lie in a plane leading through the projectile axis.
  • the locking pin, the The gas generator, the deceleration charge and the transfer set are on one side of the longitudinal axis of the projectile, the ignition charge, the spring and the firing pin are on the other side of the longitudinal axis of the projectile.
  • This bilaterally symmetrical structure enables a particularly efficient and cost-effective production, in particular when the listed components each have round cross sections, since then essentially only three different bores have to be drilled.
  • Fig. 1 shows a longitudinal section through the axis of symmetry of a practice floor, which is used in the barrel, not shown here, of a full-caliber mortar shell dummy.
  • the projectile contains in its rear part an active charge 2, over which an igniter sits.
  • the lighter is (with the safety pin released) in a central bore against a head piece 11 inserted into the projectile head 1 at the front end of the projectile, and against the force of a spring.
  • an ignition pin 3 At a certain distance above the igniter 4 is an ignition pin 3. Is sits the projectile on the target, so the A moves nzünder 4 forward, strikes the ignition pin 3, is initiated and thereby ignites the explosive charge 2 at.
  • a locking pin 5 In the position shown in Fig. 1, in which the practice projectile is still in the barrel, the inner end of a locking pin 5 is seated in an annular recess in the igniter 4.
  • the locking pin 5 has a piston-shaped head on the outside of the projectile, to which a cylindrical head is attached Shaft connects. The end of this cylindrical shaft is seated in the recess of the igniter 4.
  • the locking pin 5 is inserted under sealing into a bore in the projectile head 1, the axis of which is perpendicular to the longitudinal axis of the projectile.
  • This bore consists of two sections, the outer portion of the projectile the head of the locking pin, the smaller portion of the inner portion of the bore of the bore receives the cylindrical part of the locking pin under sealing.
  • the larger outer bore is deeper than is necessary for receiving the head of the locking pin.
  • a cavity 12 is formed behind the head of the locking pin, that is to say on the inside of the projectile.
  • the cavity 12 is connected via a bore to a pyrotechnic gas generator 14, this bore being machined parallel to the longitudinal axis of the projectile, ie perpendicular to the axis of the securing pin, in the projectile head 1.
  • a pyrotechnic delay charge 10 over the gas generator 14 sits a pyrotechnic delay charge 10, above this a transfer set 9. Transfer set 9, delay charge 10 and gas generator 14 are inserted into a common cylindrical sleeve.
  • a second hole is machined into the projectile head 1 parallel to the longitudinal axis of the floor.
  • This bore is designed as a blind bore, a striker 6 for the deceleration chain being seated essentially at the lower, closed end of the bore.
  • a spring 13 sits on the firing pin 6 and supports an ignition charge 7 located above it for the deceleration.
  • the ignition charge 7 is located in a sleeve which is displaceable in the bore against the force of the spring 13.
  • a head piece 11 is inserted into the front end of the projectile head 1.
  • the head piece 11 has at its lower, inner end on the floor an annular recess which lies directly above the bores for the transmission set 9 and the subsequent parts and above the ignition charge 7 with the subsequent parts. Through this transmission channel there is therefore a flow connection between the upper end of the ignition charge 7 and the upper end of the transmission set 9.
  • the fore-pipe protection described here works as follows: the firing charge of the propellant charge of the practice bullet impacts the ignition charge 7, which is movable against the force of the spring 13, and is initiated by the firing pin 6.
  • the flame on the outlet side the ignition charge 7 passes through the transmission channel 8 and strikes the input side of the diametrically opposite delay path or the transmission set 9.
  • the transmission set 9 is thereby ignited and ignites the delay charge 10.
  • the gas generator 14 is ignited.
  • the gases developed by this flow into the cavity 12 and drive out the piston-shaped locking pin 5. This expulsion therefore only occurs after the delay charge 10 has burned off.
  • the burn-off time is selected by means of suitable measures so that the projectile is already in its free trajectory, ie is outside the danger zone for the team.
  • the impact detonator 3/4 is in the focused position and can ignite the active charge 2 on impact at the target.
  • the spring 13, which supports the ignition charge 7 against the firing pin 6, is dimensioned such that the safety system can be ignited only by the relatively strong firing pulse of the projectile.
  • the firing charge lighter cannot be unlocked because the locking pin cannot be ejected.
  • front pipe protection shown here can not only be used with mortar practice cartridges, but also provides a very general and cheap one This is the solution in cases where other down pipe safeguards appear to be too complex or for other reasons not practical.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Catching Or Destruction (AREA)
  • Burglar Alarm Systems (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Toys (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Emergency Lowering Means (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
EP85115175A 1985-01-17 1985-11-29 Sécurité de bouche pour munition d'exercice Withdrawn EP0187932A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853501450 DE3501450A1 (de) 1985-01-17 1985-01-17 Vorrohrsicherung fuer uebungsmunition
DE3501450 1985-01-17

Publications (1)

Publication Number Publication Date
EP0187932A1 true EP0187932A1 (fr) 1986-07-23

Family

ID=6260085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115175A Withdrawn EP0187932A1 (fr) 1985-01-17 1985-11-29 Sécurité de bouche pour munition d'exercice

Country Status (7)

Country Link
US (1) US4697524A (fr)
EP (1) EP0187932A1 (fr)
JP (1) JPS61168800A (fr)
DE (1) DE3501450A1 (fr)
DK (1) DK20286A (fr)
NO (1) NO860144L (fr)
PT (1) PT81850B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617886A1 (de) * 1986-05-28 1987-12-03 Dynamit Nobel Ag Vorrohrsicherung fuer uebungsmunition
US5189250A (en) * 1988-10-05 1993-02-23 Frag, Ltd. Projectile for smooth bore weapon
US6604467B2 (en) * 1998-04-03 2003-08-12 Michael Alculumbre Safety system for a projectile fuse
US7565795B1 (en) 2006-01-17 2009-07-28 Pratt & Whitney Rocketdyne, Inc. Piezo-resonance igniter and ignition method for propellant liquid rocket engine
US20080299504A1 (en) * 2007-06-01 2008-12-04 Mark David Horn Resonance driven glow plug torch igniter and ignition method
US8814562B2 (en) * 2008-06-02 2014-08-26 Aerojet Rocketdyne Of De, Inc. Igniter/thruster with catalytic decomposition chamber
US8161725B2 (en) * 2008-09-22 2012-04-24 Pratt & Whitney Rocketdyne, Inc. Compact cyclone combustion torch igniter
CN107084640B (zh) * 2017-06-05 2018-08-17 沈阳东朗科技开发有限公司 一种模拟训练弹自动发射***

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530432A (fr) *
CH426556A (de) * 1965-02-18 1966-12-15 Stamag Ag Aufschlagzünder-Handgranate
FR1558042A (fr) * 1968-03-05 1969-02-21
DE1428801A1 (de) * 1964-03-19 1969-04-30 Prb Nv Zuender
FR2280878A1 (fr) * 1974-08-01 1976-02-27 France Etat Relais pyrotechnique de securite temporise
DE3033061A1 (de) * 1980-09-03 1982-04-22 Dynamit Nobel Ag, 5210 Troisdorf Granatwerfer-uebungsgeschoss

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE304258C (fr) *
CH425549A (de) * 1965-04-23 1966-11-30 Junghans Geb Ag Drallgeschosszünder für Übungsgeschosse
DE3048206C2 (de) * 1980-12-20 1985-06-13 Diehl GmbH & Co, 8500 Nürnberg Übungsgeschoß

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530432A (fr) *
DE1428801A1 (de) * 1964-03-19 1969-04-30 Prb Nv Zuender
CH426556A (de) * 1965-02-18 1966-12-15 Stamag Ag Aufschlagzünder-Handgranate
FR1558042A (fr) * 1968-03-05 1969-02-21
FR2280878A1 (fr) * 1974-08-01 1976-02-27 France Etat Relais pyrotechnique de securite temporise
DE3033061A1 (de) * 1980-09-03 1982-04-22 Dynamit Nobel Ag, 5210 Troisdorf Granatwerfer-uebungsgeschoss

Also Published As

Publication number Publication date
DK20286A (da) 1986-07-18
PT81850B (pt) 1992-07-31
DK20286D0 (da) 1986-01-16
JPS61168800A (ja) 1986-07-30
NO860144L (no) 1986-07-18
DE3501450A1 (de) 1986-07-17
US4697524A (en) 1987-10-06
PT81850A (de) 1986-02-01

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